As we all know, there are very simple things (plenum spacer, HFC, decent sounding air filter, throttle controller doobery) that should have been standard, whats to say a diet shouldnt be included in that list?
Id have thought they would have developed the 370Z with a view to weight saving a bit more TBH. The biggest problem the 350 has is weight, plain and simple and this is why this is an interesting topic to me. If it was a 1250KG car then it would go, stop and handle a lot better and would be frankly awesome.
If you can find out what creates the weight then you can consider how to remove it, which will improve the car, no question.